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abc9_ops: add -prep_bypass for auto bypass boxes; refactor

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Eliminate need for abc9_{,un}map.v in xilinx
-prep_dff_{hier,unmap} -> -prep_hier
This commit is contained in:
Eddie Hung 2020-04-21 12:22:39 -07:00
parent bb840cca9c
commit 7cd3f4a79b
11 changed files with 714 additions and 988 deletions
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34
tests/arch/xilinx/abc9_dff.ys
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@ -46,16 +46,40 @@ FDCE #(.INIT(1)) fd3(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[2]));
FDPE #(.INIT(1)) fd4(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[3]));
FDRE_1 #(.INIT(1)) fd5(.C(C), .CE(1'b0), .D(D), .R(1'b0), .Q(Q[4]));
FDSE_1 #(.INIT(1)) fd6(.C(C), .CE(1'b0), .D(D), .S(1'b0), .Q(Q[5]));
FDCE_1 #(.INIT(1)) fd7(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[6]));
FDCE_1 /*#(.INIT(1))*/ fd7(.C(C), .CE(1'b0), .D(D), .CLR(1'b0), .Q(Q[6]));
FDPE_1 #(.INIT(1)) fd8(.C(C), .CE(1'b0), .D(D), .PRE(1'b0), .Q(Q[7]));
endmodule
EOT
logger -expect warning "Module '\$paramod\\FDRE\\INIT=1' contains a \$_DFF_P_ cell .*" 1
logger -expect warning "Module '\$paramod\\FDRE_1\\INIT=1' contains a \$_DFF_N_ cell .*" 1
logger -expect warning "Module 'FDSE' contains a \$_DFF_P_ cell .*" 1
logger -expect warning "Module '\$paramod\\FDSE_1\\INIT=1' contains a \$_DFF_N_ cell .*" 1
logger -expect warning "Module '\$paramod\\FDRE\\INIT=1' contains a \$dff cell .*" 1
logger -expect warning "Module '\$paramod\\FDRE_1\\INIT=1' contains a \$dff cell .*" 1
logger -expect warning "Module 'FDSE' contains a \$dff cell .*" 1
logger -expect warning "Module '\$paramod\\FDSE_1\\INIT=1' contains a \$dff cell .*" 1
equiv_opt -assert -multiclock -map +/xilinx/cells_sim.v synth_xilinx -abc9 -dff -noiopad -noclkbuf
design -load postopt
select -assert-count 8 t:FD*
design -reset
read_verilog <<EOT
module top(input clk, clr, pre, output reg q0 = 1'b0, output reg q1 = 1'b1);
always @(posedge clk or posedge clr)
if (clr)
q0 <= 1'b0;
else
q0 <= ~q0;
always @(posedge clk or posedge pre)
if (pre)
q1 <= 1'b1;
else
q1 <= ~q1;
endmodule
EOT
proc
equiv_opt -assert -multiclock -map +/xilinx/cells_sim.v synth_xilinx -abc9 -dff -noiopad -noclkbuf
design -load postopt
select -assert-count 1 t:FDCE
select -assert-count 1 t:FDPE
select -assert-count 2 t:INV
select -assert-count 0 t:FD* t:INV %% t:* %D
logger -expect-no-warnings